I am not an architect so take my opinion on your style with the appropriate grain of salt:
I think you have a Garrison Colonial with a custom addition similar to the style of the following house. I am showing you two views of the exterior


The second photo shows the addition and their addition is a different custom addition.
I hope an architect or someone very knowledgeable is able to answer your question definitively.

Denita, thank you. I found it in my field guide under Colonial Houses: Post-medieval English (Northern tradition only). Now that I see other examples, I REALLY want to change the style LOL

Yea! Glad you were able to trace the roots.